Kivetibtg-machine



P. B. TYLER, B. LATHROP & W. JONES.

RIVETING MACHINE.

PATEN TED JUNE 22, 1858.

' UNITED S eras PATNT cries.

P. B. TYLER, OF SPRINGFIELD, MASSACHUSETTS, B. LATl-IROP, OF SANDUSKY,OHIO, AND

IV. SPRINGFIELD, MASSACHUSETTS.

JONES, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNORS TO P. B. TYLER, OF

RIVETING-MACI-IINE.

Specification of Letters Patent No. 20,685, dated June 2-2, 1858.

T 0 all whom it may concern:

Be it known that we, P. B. TYLER, of Springfield, Massachusetts, BENJ.LATrIRor, of Sandusky city, Ohio, and I/VILLIAM JONES, of Springfield,Massachusetts, have invented certain new and useful Improvements inMachinery for Heading Rivets; and we do hereby declare and ascertain oursaid improvements, referring to the accompanying drawings, in whichFigure l, is a side elevation; Figs. 2, 3 the tool or peening edgedetached.

In riveting small work, especially where there are long wires used forrivets, by hand, such as caster pivots and journals, &c., greatdifliculty is experienced on account of bending the wire-so also informing the heads of these rivets. They cannot be made perfect withoutdies, and these cannot be used with the long wires aforesaid withoutbending them by the necessary pressure to produce a head.

Our improvements are made to avoid these difliculties and any othersthat may be found to exist in riveting any articles where our device canbe applied.

The improvement consists of a peening edge or hammer which is made tostrike a blow by means of a spring the hammer or peen being raised byany proper mechanism while at every blow the peen is turned a little soas to strike all around the circle. The curve of the edge of the peendetermining the configuration of the head.

It is obvious that a variety of devices for making the several necessarymotions may be resorted to, well known to mechanicians but as we make noclaim to them by themselves we will only describe one of them which wehave shown in the drawing. This repre sents an upright standard a fromwhich two projections or brackets 6 project in front forming collars tosustain an upright shaft 0 and allow it to slide up and down. Betweenthe two brackets b there is a spiral spring (Z bearing against the underside of the upper bracket and a collar 6 around the shaft 0 which isfirmly fixed to the shaft. This collar may form a shoe for a cam f tostrike by which the shaft is raised against the action of the springwhich in its turn forces the shaft downward when the cam releases it.The strength of the blow is determined by regulating the strength of thespring d.

In the lower end of the shaft 0 there is a socket for inserting a peenedged tool such as is shown in the drawing Fig. 2, of any curve whichthe head is intended to be; the edge extending across the diameter ofthe circle of the intended rivet. Above the upper bracket there is awheel 72, on the shaft, loose, so that the shaft 0 can slide through it,with a feather to cause the two to turn together. The wheel in is turnedby a band connecting it with a pulley z' on a shaft d supported onbrackets is projecting from the rear side of the standard 0. belowpulley i is another 71 that receives its motion by means of a band froma pulley Z on the same shaft as the cam 7' that has its supports in thestandard a. This shaft is turned by a crank m or other device.

The operation of the machine when put in motion is to give a series ofrapid blows with the peen all around the circle, all of said blows beingof the same strength, determined by the spring, whether the machine isdriven with more or less rapidityand a succession of said blows allaround the circle gives the proper head to the rivet. l/Vhen the articleto be riveted is put under the peen the rapidity and precision of itsaction centers it and holds it in place until the operation isperformed. One or two circles of blows will ordinarily finish a rivetsmooth as if turned and from the exact regulation of the strength of theblows all possibility of being or injuring the rivet is avoided.

\Ve do not claim a revolving reciprocating tool as that is well known inmany trades but Having thus set forth our invention, what we claimtherein as new and for which we desire Letters Patent is The employmentof a peen as herein described shaped to the configuration of the head ofa rivet and operated in the manner and for the purposes set forth, bywhich a rivet head is formed by a succession of light blows around thecircle.

PHILOS B. TYLER. BENJ. LATI-IROP. WILLIAM JONES.

IVitnesses J. JOHNSON, A. HOOK, WM. SMITH.

